Correctly add sinusoidal disturbances to the prime mover of the built-in four machine two zone system in MATLAB (input power_PSS in MATLAB to automatically pop up this system)

How to correctly input sinusoidal disturbances for the torque of the prime mover in the built-in four machine two zone system of MATLAB like him, in order to output generator output power waveforms similar to those in the figure and power waveforms transmitted by the interconnection line?

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Answer 1

[Joel Van Sickel]

You can directly modify the input to the prime move by adding a sum block to the Pm input of the machine. Then you can add any type of disturbance you want to the prime mover. In this case, the input is power, so you can add a power distrubance. If you want to add a torque disturbance, you can use the machine speed to multiply that by torque to calculate how much power you should add or remove.